1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
maxonik [38]
3 years ago
10

State the first law of thermodynamics​

Physics
2 answers:
Kitty [74]3 years ago
7 0

Answer:

The first law of thermodynamics defines the internal energy (E) as equal to the difference of the heat transfer (Q) into a system and the work (W) done by the system.

Marianna [84]3 years ago
4 0

Answer:

It states that the total energy accounts for the sum of internal energy and external work done.

Explanation:

.

You might be interested in
A pressure sensor inside of a mixing tank is designed to turn red when the pressure inside the tank exceeds 1.9 kPa. If the sens
spin [16.1K]

Answer:

19 N

Explanation:

From the question given above, the following data were obtained:

Pressure (P) = 1.9 kPa

Length (L) = 10 cm

Force (F) =?

Next, we shall convert 1.9 KPa to N/m². This can be obtained as follow:

1 KPa = 1000 N/m²

Therefore,

1.9 KPa = 1.9 KPa × 1000 N/m² / 1 KPa

1.9 KPa = 1900 N/m²

Thus, 1.9 KPa is equivalent to 1900 N/m².

Next, we shall convert 10 cm to m. This can be obtained as follow:

100 cm = 1 m

Therefore,

10 cm = 10 cm × 1 m / 100 cm

10 cm = 0.1 m

Thus, 10 cm is equivalent to 0.1 m

Next, we shall determine the area of the square. This can be obtained as follow:

Length (L) = 0.1 m

Area of square (A) =?

A = L²

A = 0.1²

A = 0.01 m²

Thus, the area of the square is 0.01 m².

Finally, we shall determine the force that must be exerted on the sensor in order for it to turn red. This can be obtained as follow:

Pressure (P) = 1900 N/m²

Area (A) = 0.01 m²

Force (F) =?

P = F/A

1900 = F / 0.01

Cross multiply

F = 1900 × 0.01

F = 19 N

Therefore, a force of 19 N must be exerted on the sensor in order for it to turn red.

3 0
3 years ago
What energy is directly dependent upon velocity and mass?
erastova [34]

Answer:

Kinetic energy

Explanation:

3 0
3 years ago
light travels approximately 982,080,000 ft/s, and one year has approximately 32,000,000 seconds. A light year is the distance li
lapo4ka [179]

Answer:

The distance traveled in 1 year is: 3.143*10^{16}ft

Explanation:

Given

s = 982,080,000 ft/s --- speed

t = 32,000,000 s --- time

Required

The distance traveled

This is calculated as:

Speed = \frac{Distance}{Time}

So, we have:

Distance = Speed * Time

This gives:

Distance = 982,080,000 ft/s * 32,000,000 s

Distance = 982,080,000  * 32,000,000ft

Distance = 3.143*10^{16}ft -- approximated

5 0
2 years ago
ME PUEDEN DECIR EJERCICIOS DE RESISTENCIA AÉROBICOS Y ANAERÓBICOS POR FAAA :C ES URGENTE *Me lo explican bien pliis para saber k
Anvisha [2.4K]

Explanation:

sksksksmsmamamamamamamamama

6 0
2 years ago
Anyone know which wire matches the other one? for all 4. Need help! Thanks :-)
Fittoniya [83]

red goes to red, black goes to white, yellow goes to green, blue goes to blue.

3 0
3 years ago
Other questions:
  • What is the frequency of a wave whose wavelength is 0.7m and whose velocity is 120m/s?
    10·1 answer
  • 1 liter= 10 cubic centimeters?
    12·1 answer
  • Which of the following statements is false? In solids, the particles do not move around or change position; they can only vibrat
    11·2 answers
  • How do you find the elastic constant on a force extension graph?
    12·1 answer
  • Which scenario is an application of Newtons Second Law of Motion?
    10·1 answer
  • A metal sample of mass M requires a power input P to just remain molten. When the heater is turned off, the metal solidifies in
    8·1 answer
  • an aeroplane taking off from a field has a run of 500m. What is the acceleration and take off velocity if it leaves the ground 1
    6·1 answer
  • (give the answer or I'll report) please solve it with the steps​
    11·1 answer
  • The brightness of a light is determined by ________.
    5·2 answers
  • 5. Which statement about the acceleration of an object is corr
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!